We have checked if our server replies with that header - it’s ok, the header is present in reply. This check was done with direct request to the server by ip using /etc/hosts on client machine.
When we do the same request via cloudflare that header isn’t there and we have the ‘No ‘Access-Control-Allow-Origin’ header is present on the requested resource.’ in browser console.
Our server work fine for several month, but more that a week ago we start getting that problem.
Please advice how to fix that.